MOBA Challenger

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, Dictionary<string, int>> playersStats = new Dictionary<string, Dictionary<string, int>>();
            string player = "";
            string position = "";
            int skill = 0;
            while (true)
            {
                List<string> input = Console.ReadLine().Split(new char[] { ' ', '-', '>' }, StringSplitOptions.RemoveEmptyEntries).ToList();
                if (input[0] == "Season")
                    break;

                if (!(input.Contains("vs")))
                {
                    player = input[0];
                    position = input[1];
                    skill = int.Parse(input[2]);

                    if (playersStats.ContainsKey(player))
                    {
                        if (playersStats[player].ContainsKey(position))
                        {
                            if (playersStats[player][position] < skill)
                                playersStats[player][position] = skill;
                        }
                        else
                            playersStats[player][position] = skill;
                    }
                    else
                    {
                        Dictionary<string, int> assistDic = new Dictionary<string, int>();
                        assistDic.Add(position, skill);
                        playersStats[player] = assistDic;
                    }

                }
                else
                {
                    string playerOne = input[0];
                    string playerTwo = input[2];
                    if (playersStats.ContainsKey(playerOne) && playersStats.ContainsKey(playerTwo))
                    {
                        foreach (var role in playersStats[playerOne])
                        {
                            foreach (var pos in playersStats[playerTwo])
                            {
                                if (role.Key == pos.Key)
                                {
                                    if (playersStats[playerOne].Values.Sum() > playersStats[playerTwo].Values.Sum())
                                        playersStats.Remove(playerTwo);
                                    else if (playersStats[playerOne].Values.Sum() < playersStats[playerTwo].Values.Sum())
                                        playersStats.Remove(playerOne);
                                }
                            }
                        }
                    }
                }
            }
            foreach (var playa in playersStats.OrderByDescending(x => x.Value.Values.Sum()).ThenBy(x => x.Key))
            {
                Console.WriteLine($"{playa.Key}: {playa.Value.Values.Sum()} skill");
                foreach (var pair in playa.Value.OrderByDescending(x => x.Value).ThenBy(x => x.Key))
                {
                    Console.WriteLine($"- {pair.Key} <::> {pair.Value}");
                }
            }
        }
    }
}